Idol: Louise O`Neill

Samantha Miller is everything her fans want to be. Her three million followers hang on her every word - she's an oracle, telling them how to be their best, true selves.

To promote her new number-one bestseller, she's written an essay about her sexual awakening as a teenager with her best friend, Lisa. She's never told a soul, now she's telling the world.

But Lisa's memory of that night is far darker.

It's Sam's word against Lisa's - so whose 'truth' is really a lie?